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Finding the Fourth Proportional to 35,312.94, 48,736.18 and 20,408.94

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Solution

The fourth proportional to 35,312.94, 48,736.18 and 20,408.94 is: 28,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.94 : 48,736.18 = 20,408.94 : x
  2. Step 2: Convert to fraction form
    35,312.94/48,736.18 = 20,408.94/x
  3. Step 3: Cross multiply
    35,312.94x = 48,736.18 × 20,408.94
  4. Step 4: Simplify right side
    35,312.94x = 994,653,773.45
  5. Step 5: Solve for x
    x = 994,653,773.45/35,312.94
  6. Step 6: Final answer
    x = 28,166.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.